20165212816

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{79561}}^1$

素因数の和:79680

約数の個数: 80

約数和(自身を含む): 46723898368

約数和(自身を除く): 26558685552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 73, 112, 124, 146, 217, 248, 292, 434, 496, 511, 584, 868, 1022, 1168, 1736, 2044, 2263, 3472, 4088, 4526, 8176, 9052, 15841, 18104, 31682, 36208, 63364, 79561, 126728, 159122, 253456, 318244, 556927, 636488, 1113854, 1272976, 2227708, 2466391, 4455416, 4932782, 5807953, 8910832, 9865564, 11615906, 17264737, 19731128, 23231812, 34529474, 39462256, 40655671, 46463624, 69058948, 81311342, 92927248, 138117896, 162622684, 180046543, 276235792, 325245368, 360093086, 650490736, 720186172, 1260325801, 1440372344, 2520651602, 2880744688, 5041303204, 10082606408, 20165212816]

約数ペア:

[(1, 20165212816), (2, 10082606408), (4, 5041303204), (7, 2880744688), (8, 2520651602), (14, 1440372344), (16, 1260325801), (28, 720186172), (31, 650490736), (56, 360093086), (62, 325245368), (73, 276235792), (112, 180046543), (124, 162622684), (146, 138117896), (217, 92927248), (248, 81311342), (292, 69058948), (434, 46463624), (496, 40655671), (511, 39462256), (584, 34529474), (868, 23231812), (1022, 19731128), (1168, 17264737), (1736, 11615906), (2044, 9865564), (2263, 8910832), (3472, 5807953), (4088, 4932782), (4526, 4455416), (8176, 2466391), (9052, 2227708), (15841, 1272976), (18104, 1113854), (31682, 636488), (36208, 556927), (63364, 318244), (79561, 253456), (126728, 159122)]